19 This is the family tree of Isaac son of Abraham: Abraham had Isaac. 20 Isaac was forty years old when he married Rebekah daughter of Bethuel the Aramean of Paddan Aram. She was the sister of Laban the Aramean. 21 Isaac prayed hard to God for his wife because she was barren. God answered his prayer and Rebekah became pregnant. 22 But the children tumbled and kicked inside her so much that she said, "If this is the way it's going to be, why go on living?" She went to God to find out what was going on. 23 God told her, Two nations are in your womb, two peoples butting heads while still in your body. One people will overpower the other, and the older will serve the younger. 24 When her time to give birth came, sure enough, there were twins in her womb. 25 The first came out reddish, as if snugly wrapped in a hairy blanket; they named him Esau (Hairy). 26 His brother followed, his fist clutched tight to Esau's heel; they named him Jacob (Heel). Isaac was sixty years old when they were born.
Matthew Henry's Commentary on Genesis 25:19-26
Commentary on Genesis 25:19-26
(Read Genesis 25:19-26)
Isaac seems not to have been much tried, but to have spent his days in quietness. Jacob and Esau were prayed for; their parents, after being long childless, obtained them by prayer. The fulfilment of God's promise is always sure, yet it is often slow. The faith of believers is tried, their patience exercised, and mercies long waited for are more welcome when they come. Isaac and Rebekah kept in view the promise of all nations being blessed in their posterity, therefore were not only desirous of children, but anxious concerning every thing which seemed to mark their future character. In all our doubts we should inquire of the Lord by prayer. In many of our conflicts with sin and temptation, we may adopt Rebekah's words, "If it be so, why am I thus?" If a child of God, why so careless or carnal? If not a child of God, why so afraid of, or so burdened with sin?